I think that is an interesting concept. When I am loading my Enfield, I don't find that I slow down any even if I had a blindfold on, though. I find that with experience it becomes muscle memory, and load times do not suffer noticeably when not looking at your rifle. The only time I find that loading suffers some (and mainly the amount of powder that actually gets in the barrel) is when loading while running. That's my take.